Nuclear Data Activities in the IAEA-NDS
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1 Nuclear Data Activities in the IAEA-NDS R.A. Forrest Nuclear Data Section Department of Nuclear Sciences and Applications
2 Outline NRDC NSDD EXFOR International collaboration CRPs DDPs Training Security R. A. Forrest, WPEC
3 NRDC International Network of Nuclear Reaction Data Centres (NRDC) Aim: EXFOR Core data centres: NNDC NEA-DB IAEA-NDS CJD 10 specialized centres Meeting Paris, April 2012 (full Centre Heads) R. A. Forrest, WPEC
4 NSDD International Network of Nuclear Structure and Decay Data Evaluators (NSDD) Aim: Provide up-to-date evaluated nuclear structure and decay data Regular meetings since 1974 Last in April 2011 in Vienna 18 evaluation centres ENSDF master database at NNDC R. A. Forrest, WPEC
5 EXFOR Compiled experimental data The EXFOR database was established in the 1960s Originally exclusively neutron-induced reaction data Now includes charged particle data and higher energies Since 2003 the EXFOR libraries at the various data centres have been merged NDS has responsibility for the maintenance of this Master file R. A. Forrest, WPEC
6 EXFOR (cont.) EXFOR Compilation Control System used to coordinate the compilation of the data centres During 2011, the average time between publication and compilation dropped to 5.8 months EXFOR contains data for about 19,400 experiments Continuing effort to remove errors and inconsistencies from the database Managed by the EXFOR Feedback list (250 Very urgent items) R. A. Forrest, WPEC
7 EXFOR (cont.) To make best use of these data considerable work on various retrieval and visualisation systems Output formats: EXFOR+ format XML and HTML C4 format - numeric data in simple tables Standard EXFOR format On-line tools extract, plot with evaluated data and show corrections R. A. Forrest, WPEC 2012
8 Automatic data re-normalization Original data Re-normalized data
9 Automatic data re-normalization Compare with ENDF-B/VII.0 After renormalization: 2 = Before renormalization: 2 =
10 Example of manual corrections results Data corrected Before and after corrections
11 DDEP DDEP collaboration established in 1994 Decay data specialists who use a specific evaluation methodology Publishes decay data through the Bureau International des Poids et Mesures (BIPM) Monographie series NDS has been a major contributor to DDEP for many years: CRP on x-ray and gamma ray decay data standards CRP on Updated Decay Data Library for Actinides (84 evaluations) R. A. Forrest, WPEC
12 JEFF project NDS staff make technical contributions to the OECD/NEA JEFF Project Particularly in the field of decay data Approximately 500 decay scheme evaluations adopted into the latest JEFF Radioactive Decay Data sub-library IAEA evaluations for reaction data are candidates for inclusion in the next release (JEFF-3.2) R. A. Forrest, WPEC 2012
13 CRPs Coordinated Research Projects (CRPs) are an IAEA tool produce outputs such as data libraries by encouraging collaboration between various parties 8 completed 3 active 3 planned R. A. Forrest, WPEC
14 Completed CRPs No. Short title Duration 1 Nuclear data for Th-U fuel cycle Participants (contracts) (6) Project Officer Trkov Capote 2 RIPL (5) Capote Nuclear data for the production of therapeutic radionuclides Reference database for ion beam analysis Reference database for neutron activation analysis Updated decay data library for actinides Heavy charged-particle interaction data for radiotherapy Minor actinide neutron reaction data (MANREAD) (4) Capote (4) Abriola (4) Kellett Status Completed (2010) IAEA STI/PUB/1435 and webpage Completed (2009) Nucl. Data Sheets paper and webpage Completed (2012) IAEA TRS 473 and webpage Completed/ document in preparation Completed/ document undergoing final editing Section (4) Kellett Completed/ document in press (2) Capote (4) Otsuka Completed/ document in preparation Completed/ document in preparation R. A. Forrest, WPEC 2012
15 On-going and Planned CRPs 9 Nuclear data libraries for advanced systems: fusion devices (FENDL-3) (3) Forrest On-going Prompt fission neutron spectra for actinides (6) Capote On-going Charged-Particle Monitor Reactions and Nuclear Data for Medical Isotope Production Nuclear data for Particle Induced Gamma Ray Emission (PIGE) analysis Validation of the International Dosimetry Library IRDFF ~15 (6) Capote Approved by CCRA (6) Abriola On-going Simakov Capote Planned Beta-delayed Neutron Emission Evaluation Abriola Planned R. A. Forrest, WPEC 2012
16 Nuclear Data Libraries for Advanced Systems: Fusion Devices (FENDL-3) ( ), R.A. Forrest Primary objective is to provide an evaluated nuclear data library which is a substantial extension of the FENDL-2.1 library toward higher energies with inclusion of: Incident charged particles More uncertainty data 3 rd RCM was held at the IAEA Vienna, December 2011 Summary report of 1 st, 2 nd and 3 rd RCM available Starter files available ( R. A. Forrest, WPEC
17 FENDL-3 web site R. A. Forrest, WPEC
18 Prompt Fission Neutron Spectra for Actinides ( ), R. Capote Objectives: Make available existing experimental information on prompt fission neutron spectra (PFNS) relevant to fission reactor applications Incorporate available experimental information on PFNS for major actinides into evaluated nuclear data files Recommend evaluations of PFNS with covariances from thermal to 20 MeV 2 nd RCM, December 2011, IAEA Vienna Extension for one year will be requested R. A. Forrest, WPEC
19 Nuclear data for Particle Induced Gamma Ray Emission (PIGE) analysis ( ) D. Abriola Objectives: Identify the most important nuclear reactions for PIGE Search literature and convert relevant data to correct format Compare data from sources and carry out measurements when necessary Incorporate all measured data into database 1st RCM, May 2011, IAEA Vienna IBANDL database can hold new data R. A. Forrest, WPEC
20 IBANDL web site R. A. Forrest, WPEC
21 Charged Particle Monitor Reactions and Nuclear Data for Medical Isotope Production ( ) R. Capote Objectives: Update evaluations of the charged-particle monitor reaction database Evaluate decay data, nuclear reaction cross sections and yields for production of heavy alpha emitters and selected long-lived positron emitters Improve data for accelerator production of diagnostic gamma emitters: 123 I, 99 Tc and 111 In Undertake new measurements and evaluate decay data of: 66 Ga, 86 Y, 103 Pd, 73 Se, 94m Tc, 72 As, 62 Zn, 76 Br, 89 Zr and 120 I if possible 1st RCM, planned for September 2012, IAEA Vienna R. A. Forrest, WPEC
22 Validation of the International Dosimetry Library (IRDFF) ( ) Simakov-Capote A related CM was held at IAEA Vienna, May 2010: INDC(NDS)-0575 A new dosimetry library for fission and fusion applications (IRDFF) has been developed and released in February 2012 Following support from INDC, plan is to validate this in a new CRP R. A. Forrest, WPEC
23 Beta-delayed neutron emission evaluation ( ) D. Abriola A related CM was held at IAEA Vienna, October, 2011 : INDC(NDS)-0599 Beta-delayed neutrons are important for energy production, astrophysics and nuclear theory New experimental facilities will be able to produce new precursors in the neutron-rich region Following support from INDC, plan to start a new CRP R. A. Forrest, WPEC
24 DDPs Data Development Projects (DDPs) are carried out by the IAEA through: Consultancy visits Service agreements Work undertaken directly by NDS staff Examples: Neutron cross section standards IRDFF dosimetry library IBANDL Decay heat of actinides Evaluation and covariance methodology Evaluations Missing level corrections Phase-space database R. A. Forrest, WPEC
25 Training Provide outreach in the form of training, especially to developing countries EXFOR workshops Workshops held at ICTP Trieste (~ 2 per year) 2011: Monte Carlo radiation transport and associated data needs for medical applications 2012: Atomic & Molecular 2012: NSDD related 2013: Medical Applications 2013: Analytical Applications R. A. Forrest, WPEC
26 IT security First web site shutdown 3 rd February Potential vulnerability demonstrated by external experts Corrected by migration to new hardware Improvements to firewall/dmz Site back up after 1 week, but many services not restored Need for IAEA to take security seriously accepted R. A. Forrest, WPEC
27 NDS Computer Network R. A. Forrest, WPEC
28 Planned NDS Computer Network R. A. Forrest, WPEC
29 2 nd shut-down Focussing not on hardware but on software penetration testing showed some vulnerabilities with NDS applications Friday 27 th April, web page shutdown due again, down until 10 th May Documentation shows several classes of problems: SQL injection Script vulnerabilities Wiki software out of data Folders could be listed R. A. Forrest, WPEC
30 The Future Limited justification for shut-down NDS needs to maintain independence We have expert system staff Investigating external hosting site Some changes to working procedure, but should be transparent to users Apologies and explanation in Newsletter and in News item on Web page Increased scrutiny on NDS operation R. A. Forrest, WPEC
31 Thank you! R. A. Forrest, WPEC
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